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Elastic light scattering with a LiNbO3 waveguide

机译:LiNbO3波导的弹性光散射

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We present the measurements of hemispherical elastic scattering of light guided by different modes of a planar LiNbO3 waveguide. It is shown that the fundamental and the lowest-order modes are more sensitive to the scattering properties of the air-core interface, whereas higher-order modes are more sensitive to the optical inhomogeneities of the core-substrate interface. We also demonstrate that because of static polarization of LiNbO3 crystal, the air-core interface is sensitive to the presence of dust particles in air, which causes a change in the scattered light based on time of observation. This sensitivity could be used to elaborate compact sensors of air contamination, (C) 2002 Optical Society of America. [References: 15]
机译:我们介绍了由平面LiNbO3波导的不同模式引导的光的半球弹性散射的测量结果。结果表明,基模和最低阶模对空芯界面的散射特性更为敏感,而高阶模对芯-基体界面的光学不均匀性更为敏感。我们还证明,由于LiNbO3晶体的静态极化,空芯界面对空气中灰尘颗粒的存在敏感,这会导致基于观察时间的散射光发生变化。这种敏感性可用于制造紧凑的空气污染传感器,(C)2002美国光学学会。 [参考:15]

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